46-11-02: Copilot Oxygen Regulator
FAA order 46-11-02 is an airworthiness directive. The FAA's subject line: Copilot Oxygen Regulator. It names Douglas C-54: about 7 aircraft on the U.S. register today, though an order usually covers particular versions or serial numbers rather than every one. System: emergency equipment.
What it applies to as the FAA lists it
- Kind of product
- Aircraft
- Makes
- The Boeing Company
- Models
- C54-DC, C54A-DC, C54B-DC, C54D-DC, C54E-DC, C54G-DC
- On this site
- Douglas C-54 7 registered
Dates and paperwork
- Docket
- Unknown
- Status
- Current
- The FAA's document
- Read the order on the FAA's site
The order itself the regulatory text, as published
Show the full text (585 characters)
46-11-02\tDOUGLAS: (Was Mandatory Note 1 of AD-762-7.) Applies to All C-54 Series Aircraft. \n\n\tTo be accomplished not later than July 1, 1948. \n\n\tThe copilot oxygen regulator must be relocated from its position below the autopilot control handle to Station 101 aft of the windshield defroster control plate and knob, in order to eliminate a fire hazard and contamination of the oxygen regulator in the event hydraulic fluid drips on the regulator from the autopilot control valve. \n\n\t(Douglas Service Bulletin No. C-54-247 dated November 16, 1945, covers this same subject.)
Related safety bulletins advice on the same designs, not orders
2014-11-24NM-15-03 · Flight Controls
Source: FAA Dynamic Regulatory System, airworthiness directives. The FAA's document is the authority; the register counts are this site's, from the FAA register of October 7, 2026. Connections as data: /graph/directive/46-11-02.json · aircraft systems.